Macbook osx 10.7.4 keeps making me do a force shut down

here is my report after it causes me to do a force shutdown that pops up and tells me to hold down the power button.  Please help its driving me crazy.
Interval Since Last Panic Report:  138991 sec
Panics Since Last Report:          3
Anonymous UUID:                    F04812BB-50A4-4EE7-8229-E6D5231C33F7
Fri Jul 27 22:12:32 2012
panic(cpu 1 caller 0xffffff80002c473a): Kernel trap at 0xffffff8000292d8b, type 14=page fault, registers:
CR0: 0x000000008001003b, CR2: 0x0000000000000008, CR3: 0x00000000607f7000, CR4: 0x0000000000000660
RAX: 0x0000000000000000, RBX: 0xffffff800555c0e0, RCX: 0x0000000000000000, RDX: 0xffffff80008bc820
RSP: 0xffffff808d4c3c70, RBP: 0xffffff808d4c3c90, RSI: 0x0000000000000000, RDI: 0xffffff800555c0e0
R8:  0x00007ffef8220000, R9:  0xffffff80008bde10, R10: 0xfffffe80b0859100, R11: 0x00080000000ae5da
R12: 0xffffff800555c0e0, R13: 0x0000000000000000, R14: 0x0000000000000000, R15: 0x0000000000000080
RFL: 0x0000000000010203, RIP: 0xffffff8000292d8b, CS:  0x0000000000000008, SS:  0x0000000000000010
CR2: 0x0000000000000008, Error code: 0x0000000000000002, Faulting CPU: 0x1
Backtrace (CPU 1), Frame : Return Address
0xffffff808d4c3920 : 0xffffff8000220792
0xffffff808d4c39a0 : 0xffffff80002c473a
0xffffff808d4c3b50 : 0xffffff80002da0cd
0xffffff808d4c3b70 : 0xffffff8000292d8b
0xffffff808d4c3c90 : 0xffffff80002807b3
0xffffff808d4c3d00 : 0xffffff8000281116
0xffffff808d4c3d30 : 0xffffff8000281494
0xffffff808d4c3d60 : 0xffffff8000282206
0xffffff808d4c3d90 : 0xffffff8000273d87
0xffffff808d4c3e80 : 0xffffff8000274a3a
0xffffff808d4c3eb0 : 0xffffff8000237919
0xffffff808d4c3ef0 : 0xffffff8000543ec9
0xffffff808d4c3f40 : 0xffffff8000541a1e
0xffffff808d4c3f50 : 0xffffff80005cd61b
0xffffff808d4c3fb0 : 0xffffff80002daa13
BSD process name corresponding to current thread: getPPDVersion
Mac OS version:
11E53
Kernel version:
Darwin Kernel Version 11.4.0: Mon Apr  9 19:32:15 PDT 2012; root:xnu-1699.26.8~1/RELEASE_X86_64
Kernel UUID: A8ED611D-FB0F-3729-8392-E7A32C5E7D74
System model name: MacBook5,1 (Mac-F42D89C8)
System uptime in nanoseconds: 918805183959
last loaded kext at 392993584764: com.apple.filesystems.smbfs          1.7.2 (addr 0xffffff7f80791000, size 241664)
last unloaded kext at 222777650557: com.apple.driver.AppleUSBTCKeyEventDriver          225.2 (addr 0xffffff7f81bee000, size 8192)
loaded kexts:
com.apple.filesystems.smbfs          1.7.2
com.apple.driver.AppleHWSensor          1.9.5d0
com.apple.filesystems.autofs          3.0
com.apple.filesystems.ntfs          3.10.1
com.apple.driver.AudioAUUC          1.59
com.apple.driver.AppleMikeyHIDDriver          122
com.apple.driver.AppleUpstreamUserClient          3.5.9
com.apple.driver.AppleMCCSControl          1.0.26
com.apple.iokit.IOUserEthernet          1.0.0d1
com.apple.iokit.IOBluetoothSerialManager          4.0.5f11
com.apple.driver.AGPM          100.12.42
com.apple.Dont_Steal_Mac_OS_X          7.0.0
com.apple.driver.AppleHDA          2.2.0f3
com.apple.GeForce          7.1.8
com.apple.driver.AppleMikeyDriver          2.2.0f3
com.apple.driver.AudioIPCDriver          1.2.2
com.apple.driver.SMCMotionSensor          3.0.2d6
com.apple.driver.AppleSMCLMU          2.0.1d2
com.apple.driver.AppleLPC          1.5.8
com.apple.driver.ACPI_SMC_PlatformPlugin          5.0.0d0
com.apple.driver.AppleBacklight          170.1.9
com.apple.driver.AppleUSBTCButtons          225.2
com.apple.driver.BroadcomUSBBluetoothHCIController          4.0.5f11
com.apple.driver.AppleUSBTCKeyboard          225.2
com.apple.driver.AppleIRController          312
com.apple.AppleFSCompression.AppleFSCompressionTypeDataless          1.0.0d1
com.apple.AppleFSCompression.AppleFSCompressionTypeZlib          1.0.0d1
com.apple.BootCache          33
com.apple.iokit.SCSITaskUserClient          3.2.0
com.apple.driver.XsanFilter          404
com.apple.iokit.IOAHCISerialATAPI          2.0.3
com.apple.iokit.IOAHCIBlockStorage          2.0.3
com.apple.driver.AirPort.Brcm4331          530.4.20
com.apple.driver.AppleAHCIPort          2.3.0
com.apple.nvenet          2.0.17
com.apple.driver.AppleUSBHub          4.5.0
com.apple.driver.AppleUSBEHCI          4.5.8
com.apple.driver.AppleUSBOHCI          4.4.5
com.apple.driver.AppleSmartBatteryManager          161.0.0
com.apple.driver.AppleEFINVRAM          1.5.0
com.apple.driver.AppleRTC          1.5
com.apple.driver.AppleHPET          1.6
com.apple.driver.AppleACPIButtons          1.5
com.apple.driver.AppleSMBIOS          1.8
com.apple.driver.AppleACPIEC          1.5
com.apple.driver.AppleAPIC          1.5
com.apple.driver.AppleIntelCPUPowerManagementClient          193.0.0
com.apple.nke.applicationfirewall          3.2.30
com.apple.security.quarantine          1.3
com.apple.driver.AppleIntelCPUPowerManagement          193.0.0
com.apple.kext.triggers          1.0
com.apple.iokit.IOSurface          80.0.2
com.apple.iokit.IOSerialFamily          10.0.5
com.apple.driver.DspFuncLib          2.2.0f3
com.apple.iokit.IOAudioFamily          1.8.6fc17
com.apple.kext.OSvKernDSPLib          1.3
com.apple.nvidia.nv50hal          7.1.8
com.apple.NVDAResman          7.1.8
com.apple.driver.ApplePolicyControl          3.0.16
com.apple.driver.AppleSMBusController          1.0.10d0
com.apple.driver.AppleHDAController          2.2.0f3
com.apple.iokit.IOHDAFamily          2.2.0f3
com.apple.driver.AppleSMC          3.1.3d8
com.apple.driver.IOPlatformPluginLegacy          5.0.0d0
com.apple.driver.IOPlatformPluginFamily          5.1.0d17
com.apple.driver.AppleSMBusPCI          1.0.10d0
com.apple.driver.AppleGraphicsControl          3.0.16
com.apple.driver.AppleBacklightExpert          1.0.3
com.apple.iokit.IONDRVSupport          2.3.2
com.apple.iokit.IOGraphicsFamily          2.3.2
com.apple.driver.AppleUSBBluetoothHCIController          4.0.5f11
com.apple.iokit.IOBluetoothFamily          4.0.5f11
com.apple.driver.AppleUSBMultitouch          227.1
com.apple.iokit.IOUSBHIDDriver          4.4.5
com.apple.driver.AppleUSBMergeNub          4.5.3
com.apple.driver.AppleUSBComposite          4.5.8
com.apple.iokit.IOSCSIMultimediaCommandsDevice          3.2.0
com.apple.iokit.IOBDStorageFamily          1.6
com.apple.iokit.IODVDStorageFamily          1.7
com.apple.iokit.IOCDStorageFamily          1.7
com.apple.iokit.IOSCSIArchitectureModelFamily          3.2.0
com.apple.iokit.IO80211Family          420.3
com.apple.iokit.IOAHCIFamily          2.0.8
com.apple.iokit.IONetworkingFamily          2.1
com.apple.iokit.IOUSBUserClient          4.5.8
com.apple.iokit.IOUSBFamily          4.5.8
com.apple.driver.NVSMU          2.2.9
com.apple.driver.AppleEFIRuntime          1.5.0
com.apple.iokit.IOHIDFamily          1.7.1
com.apple.iokit.IOSMBusFamily          1.1
com.apple.security.sandbox          177.5
com.apple.kext.AppleMatch          1.0.0d1
com.apple.security.TMSafetyNet          7
com.apple.driver.DiskImages          331.6
com.apple.iokit.IOStorageFamily          1.7.1
com.apple.driver.AppleKeyStore          28.18
com.apple.driver.AppleACPIPlatform          1.5
com.apple.iokit.IOPCIFamily          2.6.8
com.apple.iokit.IOACPIFamily          1.4
Model: MacBook5,1, BootROM MB51.007D.B03, 2 processors, Intel Core 2 Duo, 2.4 GHz, 4 GB, SMC 1.32f8
Graphics: NVIDIA GeForce 9400M, NVIDIA GeForce 9400M, PCI, 256 MB
Memory Module: BANK 0/DIMM0, 2 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353637334448312D4346382020
Memory Module: BANK 0/DIMM1, 2 GB, DDR3, 1067 MHz, 0x80CE, 0x4D34373142353637334448312D4346382020
AirPort: spairport_wireless_card_type_airport_extreme (0x14E4, 0x8D), Broadcom BCM43xx 1.0 (5.106.198.4.20)
Bluetooth: Version 4.0.5f11, 2 service, 11 devices, 1 incoming serial ports
Network Service: AirPort, AirPort, en1
Serial ATA Device: FUJITSU MHZ2250BH FFS G1, 250.06 GB
Serial ATA Device: OPTIARC  DVD RW AD-5960S
USB Device: Built-in iSight, apple_vendor_id, 0x8507, 0x24400000 / 2
USB Device: Apple Internal Keyboard / Trackpad, apple_vendor_id, 0x0236, 0x04600000 / 3
USB Device: IR Receiver, apple_vendor_id, 0x8242, 0x04500000 / 2
USB Device: BRCM2046 Hub, 0x0a5c  (Broadcom Corp.), 0x4500, 0x06100000 / 2
USB Device: Bluetooth USB Host Controller, apple_vendor_id, 0x8213, 0x06110000 / 5

I don't think he is descibing a kernel panic. He is describing the dialogue box that comes up when you press on the power button in the middle of a session.  I have two machines that are now constantly asking if I'm sure if I want to shutdown. I keep hitting the cancel button but, it comes right back up.
Tried resettting the pram but, that didn't work. One machine is a  Macbook Air and the other is a MacBookPro. Both have 30" Cinema Displays with the dual-link to mini-displayport adapter. Both Macbooks have thunderbolt ports are running Lion. This was not a problem under Snow Leopard.   If I disconnect the monitors, the dialogue box stops coming up.
Is there a incompatibility between thunderbolt, Lion and the older 30" Cinema Display?

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